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Design method of novel wide-breadth voltage-regulating distribution transformer

A technology for distribution transformers and design methods, applied in the field of transformers, can solve problems such as volatility and bad operating conditions, and achieve the effect of providing power supply reliability and power supply efficiency

Inactive Publication Date: 2020-05-29
YUNNAN POWER GRID CO LTD KUNMING POWER SUPPLY BUREAU
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

Because the voltage of the low-voltage side system is easily affected by the difference between morning and evening load peaks and valleys, seasonal load changes and power consumption habits, there will be fluctuations, intermittent and sudden changes in bad operating conditions, which will affect the stability and safety of the entire low-voltage power grid. Running poses a huge challenge

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  • Design method of novel wide-breadth voltage-regulating distribution transformer
  • Design method of novel wide-breadth voltage-regulating distribution transformer
  • Design method of novel wide-breadth voltage-regulating distribution transformer

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] A design method for a new wide-range voltage-regulating distribution transformer, including the following:

[0024] Step 1: Select the substations that cannot maintain the normal voltage amplitude of the low-voltage side from the substations operating in grid connection, and compare and analyze the voltage regulation methods and control strategies of these substations to obtain a wide range that meets the requirements. voltage regulating distribution tr...

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Abstract

The invention discloses a design method of a novel wide-breadth voltage-regulating distribution transformer, and aims to provide a design method of a novel wide-breadth voltage-regulating distributiontransformer which is reliable in operation. The method comprises the following steps: step 1, selecting transformer districts which cannot maintain normal voltage amplitude of a low-voltage side fromthe transformer districts in grid-connected operation, and comparing and analyzing voltage regulation modes and control strategies of the transformer districts to obtain a wide-width voltage regulation distribution transformer meeting requirements; step 2, by researching a control strategy of the wide-width voltage-regulating distribution transformer, adding a corresponding unit on a functional module, thereby realizing self-adaptive control of the distribution transformer and automatic treatment of low voltage; step 3, enabling the wide-width voltage-regulating distribution transformer to have self-adaptive operational capability by designing the wide-width voltage-regulating distribution transformer and optimizing a control strategy; and step 4, screening and optimizing a self-adaptivecontrol module through PSCAD-based simulation modeling and full-working-condition fault analysis, thereby improving the low-voltage governance capability of the low-voltage transformer area in the distribution network.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a design method of a novel wide-range voltage regulation distribution transformer. Background technique [0002] At present, there are four main methods of low-voltage control measures in the distribution network: (1) autotransformer boost; (2) increase the output voltage of the distribution transformer in the station area to boost; (3) extend the 10kV line and add a new distribution transformer Step-up; (4) Step up by installing a low-voltage line compensating voltage regulator; the above-mentioned four methods have shortcomings, and the details are as follows: using an autotransformer to directly step up the voltage, under the same capacity, the device has many consumables, heavy weight, and volume Large, not only the cost is high, but also because of the heavy weight, the installation cost is also greatly increased; the use of increasing the output voltage of the distribu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
Inventor 陈治廷周浩然吴寄邱靖雯景琳钦
Owner YUNNAN POWER GRID CO LTD KUNMING POWER SUPPLY BUREAU
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